Performance of Downlink SISO NR System using MMSE-IRC Receiver
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2,624 citations
"Performance of Downlink SISO NR Sys..." refers background in this paper
...larger resource grid, higher MIMO configurations and an advanced channel model [1], [9]....
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410 citations
"Performance of Downlink SISO NR Sys..." refers methods in this paper
...The LLR calculation in general is given by [5]...
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94 citations
"Performance of Downlink SISO NR Sys..." refers background or methods in this paper
...However, BG2 is targeted for smaller block lengths with maximum 3840 code block size and gives 52 × 384 = 19968 codewords, which almost gives 1/5 code rate....
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...Also, with the sparse structure and Shannon capacity approaching capability [4], the inclusion of LDPC codes in 5G NR Phy layer helps to meet the high-reliability and high data-rate requirements of 5G NR....
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...For LDPC encoding, two different code rates are utilized using BG1 and BG2 base matrices....
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...The 3GPP provides two rate-compatible base graphs, BG1 and BG2 [4], [7]....
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...Also, authors in [2], [4] analysed and simulated performance of LDPC codes and IRC techniques for 4G and beyond....
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68 citations
"Performance of Downlink SISO NR Sys..." refers methods in this paper
...The LLR values are utilized by min-sum decoder [6] to decode the coded data....
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57 citations
"Performance of Downlink SISO NR Sys..." refers background or methods in this paper
...DMRS helps to estimate the variance of interfering signals which later utilised in MMSE-IRC receiver to overcome all the interferences....
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...The key contributions of this work include: i) The simulation of NR frame-based transmission over single link for various modulation schemes. ii) Analysis of link performance over 3GPP channel for various scenarios like indoor hotspot (InH), rural macro (RMa) and urban micro (UMi). iii) Bit error performance improvement with various LPDC code rates. iv) The interference caused by other nearby devices associated with user’s data is mitigated with the advanced MMSE-IRC technique. v) Capacity performance of existing (LTE) and new (NR) technology is compared for different subcarrier spacing (∆f )....
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...To incorporate the aforementioned performance measures in this paper, the link-level simulation of downlink single input single output978-1-7281-7299-6/20/$31.00 © 2020 IEEE (SISO) new radio (NR) using MMSE/MMSE-IRC receiver over 3GPP channel model with inclusion of LDPC channel coding is presented....
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...Simulation result also confirms the successful interference mitigation using advanced MMSE-IRC receiver....
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...Index Terms—5G NR, frame structure, 3GPP, physical layer, low-density parity-check (LDPC) codes, interference rejection combining (IRC), MMSE-IRC....
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